Parametric decay induced first-order phase transition in two-dimensional Yukawa crystals.

ABSTRACT: The melting process of two-dimensional (2D) Yukawa crystals for dusty plasma medium induced by external perturbations has been explored using molecular dynamics simulations. A 2D monolayer of particles interacting via Yukawa pair potential is formed in the presence of an external confinement potential. The confinement potential is a combined effect of the gravitational force and an externally applied electric force, which mimics the sheath electric field in dusty plasma experiments. The response of the 2D crystalline layer to an external perturbation is investigated. It is shown that transverse surface waves are generated below a particular threshold value of initial perturbation, but the crystalline order remains. However, above a threshold value of initial disturbance, the crystalline or

SUBMITTER: Maity S 

PROVIDER: S-EPMC9705321 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature